<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <h1 class="watermelonTitle">西瓜商后台管理系统</h1>
      <!-- 登录表单区域 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        
        <el-radio-group v-model="radio" class="radio" @change="userChange">
          <el-radio :label="1">后台管理人员</el-radio>
          <el-radio :label="3">用户</el-radio>
          <el-radio :label="2">送花人员</el-radio>
        </el-radio-group>
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user" placeholder="昵称"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password" placeholder="密码"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="register">注册</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      radio: 3,
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: '',
        password: '',
        type: '3'
      },
      // 这是表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [{ required: true, message: '请输入登录名称', trigger: 'blur' }, { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }],
        // 验证密码是否合法
        password: [{ required: true, message: '请输入登录密码', trigger: 'blur' }, { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    register() {
      console.log('注册')
      this.$router.push('/register')
      // ref被用来注册引用信息，引用信息将会注册在父组件的$refs上
      // this.$refs.loginFormRef.resetFields()
    },
    login() {
      // let username = 'admin'
      // const { data: res } = this.$http.get('inter3', username)

      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm, {
          headers: {
            'Content-Type': 'application/json'
          }
        })
        console.log('status', res.status)
        if (res.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登录成功')
        // 1. 将登录成功之后的 token，保存到客户端的 sessionStorage 中
        //   1.1 项目中出了登录之外的其他API接口，必须在登录之后才能访问
        //   1.2 token 只应在当前网站打开期间生效，所以将 token 保存在 sessionStorage 中
        console.log('token', res.data)
        window.localStorage.setItem('token', res.data)
        console.log(this)
        // 2. 通过编程式导航跳转到后台主页，路由地址是 /home
        this.$router.push('/home')
      })
    },
    userChange(val) {
      this.loginForm.type = val + ''
    }
  }
}
</script>
<style lang="less" scoped>
.login_container {
  // background-color: #509aae;
  background: url('../assets/loginBack.gif') no-repeat;
  background-size: 100% 100%;
  height: 100%;
}

.login_box {
  position: relative;
  width: 485px;
  height: 354px;
  background-color: #FBEFD7;
  border-radius: 40px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  position: absolute;
  top: 127px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.watermelonTitle {
  position: absolute;
  top: 65px;
  left: 130px;
  color: #D34159;
  font-size: 25px;
}
.btns {
  display: flex;
  justify-content: flex-end;
}

.radio {
  font-size: 15px;
  text-align: center;
  margin: 10px;
  padding-left: 35px;
}
</style> 
